package com.demo.exce;

/**
 * @Author WaveHi
 * @Date 24/7/2021 上午 10:44
 * @Version 1.0
 * @Contact HJBWaveHi@163.com
 * @Description
 */
public class UpperCaseDemo {

    public static void main(String[] args) {

        char c1 = 'a';
        c1 -= 32;
        System.out.println(c1);

    }

}
